Shoe-heel-breast buffer and paper-former



H. G. BENDIX AND H. FORTH. v

SHOE HEEL BREAST BUFFER AND PAPER FORMER.

APPLICATiON HLED DEC. 3,1918.

Patented Dec. 30, 1919.

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,4 Nam/Em WITNESSES r18 vide a neanslfor shapi-ng the abrading ele- HERMAN GEORGEKBENfiIX AN n HERMANN IORTI-I, OFQBIRVOOKLYN; new YORK,

, nssmnons ToiMARnc nenn OFIBROQKLYH', NEW'YQRK L a i E snon-nnnn nnniisrnurrrmnn i'iai m'mmm l i A pplieation filed B NDI d H R- A JF BF H' b fli' s t ii a f the U i Stat s; and. res dents ft e city ofNew York lborough"ofBiooklyrni have inventeda ewend lni roved Shoe Heel-Breast Buffer. 1 and: PaperFormer; of which the following a ifnlli jol ear and exact description. 4 f

This invention 7 relates to shoe: heel, fibre gist buflers and especiallyfto bullers gadapte d for use inconnection \yith -g lgouiseX type in which the lheell breast" isformed" w th a.- a fu f erd upward rn; "Wher i i;

merges into "the instep and also isproyided bottom.

More definitely stated, among theobjects 5;

goal; embodiment thereofreference is had to j Eigureglisa rperspectiye view of a rrec- .fltanga larpieceofqabrasive paper or the like prion to ts formation ,into cylindrical form t for application to theibufi'er body.

, Fig,; 2,is1 a perspective view indicating hour mproved fQllllfiliflIld one of the; abrad ing sleeves;thereon.

2 -i f zfF H a Fig. 3 is aperspective view ofsaid sleeve 7 o. l separated from theformer orjibufferbody. wlth a vertical v Cyh n dllCa-l" curve at the Fig. i 4' i is a plan view 2 partially I insection tion and ha ing an abrasive surfaceformedw ing,; to theline 5 50f Fig-7 x of a minimum amount ofcarborundurn p a-,1 per, or its equiyalent,"whereby the element of economy .ofmateriali is observed I A further object of theinvention is to pro;

ment and applyingit to l the: buffer body,

I whereby a substantially perfect cylindrical A further objectis to'facilitate the, appli l cation ofthe abrading surface to thebu-fi'er Q to provide a bufieradapted' for highspeed-. rotation and having locking n eans ,ton're-r inovably hold the abrading surfacethereon in such a manner as not to, materially dis,-

turbthe balance of the deviceor so as to prov vide for the least possibleyibration as an;

- wood and 1 having formed longitudinally 1 therein a slot orlterf liextending outward incident of'the high speed rotation. 7

With the foregoing and, other objectsin; view the invention consists in thearrangeis;-a similar View; on the oi Fig. 5ishowing the locking actionjofthe core; and r T or other symmetrical'curved surface 1s ,obj-

F ig.8,is a sideelevation of the core de tachedandindicating the means for coun f'teli-billillncing the-same. v or i a Referring now? more pairticularly to the I,

: drawings ;We indicate" at ;10 a rectangular ipiece of abrasiye material such as fine sand L paper; carborundum paper,- .or the like, 1 cut ,tialglysqnare. Thismemberwill be referred -.'These sleeve blanks being cut or formed of still for the purig je ot Fig. 2? isiatransyerse section on the line t eac ompanyingi-dmw g i wh like I I reference characters i designate; the I same i ,i l I up 'fi lmlheS r l ew i hiche the county of Kingsand StaterofNew York,

i indicating the nanner of transferring the q sleeye fron the, former tothe buffer body Rig. isa ertical longitudinal section of ithe, I uller complete one plane correspond-i Fig. 6 is a vertical transverse sectional g o view indic'ating the relation of thelocking coreat the time the sleeve is applied to the -10 :in a uniform manner, and; which \vehai'ei found I in practice; to be preferably substan c ("to for conveniencehereinafter asthe sleeve;

uniform size andshape, }their;manipulation bodies may be performed expeditiously and reliably.

smooth cylindrical piece of material such as radially from "i approxin'iately gits"center-.

11 indicates a former,poiisisting of a" ment and cornbinationiofparts; hereinafter One sideall ofthekerf 121;is, connected.- wlthille cylindrical outer surfacealonga described and claimed, and While the invention is not restricted to the exact details of v v r a i lyhs 1 i shm 3 wh e the 9' Construction disclosed or suggested herein,

posite edge portion ll is reduced materially in forming and applying them to thebufler. 1

retained fixed to the machine and hence is in rigid position when idle.

Our improved bufi'er includes a metallic shank 15 having a stem 16 threaded for rigid engagement with the machine spindle, not shown, but from which it will be understood to be given a high speed of rotation. The shank has a hollow threaded center 17 and a longitudinally extending hollow cylindrical quill 18 havina a slot along one side at 19 which extends from the outer end of the quill down almost to the shank 15. The shank and quill, having acylindrical surface 20, common to both of them are fitted with a flexible fibrous body 21 of good quality of felt, or its equivalent, the same being gripped at one end around the shank by means of a collar 22 having any suitablefastening means such as set screws 23 extending therethrough radially into the felt body. This flexible body has a length such that it extends beyond the outer end of the quill 18 as indicated at 21 in Fig. 5, and has along one side a longitudinal slot 24 extending all the way from its open end to the inner end of the slot 19. The length of the slot 24: is substantially equal to that of the abrasive sleeve. i

The remaining portion of the buffer body consists of a locking member 25 formed from a cylindrical piece of metal having a screw threaded central shank 26 whereby it is rotatably fitted into the socket 17. One side, however, of the cylindrical body is reduced forming a spiral cam as indicated at 27, (Figs. 6 and 7), said cam extending circumferentially from a longitudinal radial groove 28. The end of the locking body is provided with a tool slot29 for rotation thereof. On the side or face of the body 25 opposite the groove 28 and the cam surface 27 the material is removed as shown at 30 by any suitable means so as to render the look: ing member substantially balanced with respect to the axis of rotation, and whereby the tendency to cause vibration of the buffer when rotated at high speed is practically eliminated.

Having thus set forth the principal fea tures of our construction, the manner of use thereof will be readily understood as follows: Considering the bufl er body fixed to the machineand held steady in position and with the core 25 turned to the position indicated in Fig. 6 with its groove 28 registering with the slots 19 and 2% it will be in position to receive the sleeve 10. NVe, then take the former 11 in hand and project one edge of a sleeve blank 10 directly into the kerf 12.

WVhile holding the blank in this position the main portion thereof will be broken or bent directly around the sharp edge 13 thereof forming a tongue or flange 10. This tongue Will he, therefore, of a uniform width substantially equal to the depth of the kerf. We then remove the sleeve from the kerf and apply the opposite side edge of the kerf and form the second flange 10 in precisely the same manner. 'With this second flange 10 left in the kerf and the sleeve held upon the cylindrical surface of the former, the first formed flange 10 will then be broughtaround into the kerf as indicated in Figs. 2 and 3. The reduced edge 1% of the former enables the operator to readily slip this latter mentioned flange down into the keri' alongside of and parallel to'the flange 10". These flanges having been formed over the same relatively sharp edge 13 of the former must be of the same width and with the exercise of no more than ordinary care the operator is able to fit the sleeve upon the former so as to occupy the position of Fig. 2 with facility, thereby forming a substantially cylindrical abrading surface for the sleeve and moreover forming a sleeve having a minimum amount of waste, the only waste ma.- terial being the relatively narrow flange portions 10 and 10 The next step is for the operator while still holding the flanged portion of the sleeve in the kerf 12 is to slip the sleeve endwise from the former directly upon the buffer body, the flanges 10 and 10 slipping into the alined groove 28 and slots 19 and 24 as shown in Fig. 6. The cylindrical surface of the former is substantially the same as that of the flexible body 21. In this consideration'the reduced shoulder portion 14: of the former is negligible because the rigidity of the sleeve material 10 is such that while the operator holds the sleeve with these flanges in the kerf 12 the shoulder portions of the sleeve will naturally be substantially in the same cylindrical curve. At any rate when the sleeve is slipped upon the felt body which has a true cylindrical surface the sleeve automatically and directly conforms thereto, while the flanges thereof are held temporarily stationary by the operators fingers. lVhile the sleeve is thus held upon the felt body with the fingers of one hand the operator grasping a screw-driver or like tool with his other hand will project the tool into the slot 29 and turn the locking core 25 to the position shown in Fig. 7 caus ng the cam surface 27 to grip or bind the free edge portions of the flanges 1O or 10 against the inner surface of the quill. This action furthermore tends to tighten the cylindrical portion of the sleeve upon outer surface of the felt body whereby it will be fixed in the best possible form for practical operation.

the device is now ready for operation. The sleeve is essentially cylindrical and coaxial with the butter body or shank. Most of the sleeve is rigidly supported by means oi. the rigid quill 18, subject, however, to the resiliency ot' the felt body 21 forming a cushion. The outer end, however, of the sleeve supported only by the extended end 21 of the felt body is more flexible, which fact is especially appreciated by those familiar with the operation of such devices. WVith respect to the eleinent'ot economy of material w wish to point out that not only is the material cut and manipulated in the most economical manner as already set forth, but the entire construction including the extended flexible end 21 n'iakes for the possibility of operating practically every portion of the cylindrical portion of the sleeve until it is worn one \Ve claim:

In a heel breast buffer, the combination of a rigid hollow cylindri -al quill having a longitudinal slot extending from one end thereof, a cylindrical resilient body fitted upon the quill and having a longitudinal slot extending from its outer end and registering with the aforesaid slot, said resilient body being longer than the quill and having its outer end directly unsupported thereby, an abrasive sleeve so tori'ned from a rectangular blank as to have a cylindrical body conforming to the outer surface of the" resilient body and having also parallel edge inen'ibers projecting inward through said slots, and means Within the quill serving to engage said edge nien'ibers to lock them in position and holding the abrading sleeve in place.

HERMAN GEORGE BENDIX. HERMANN FORTH. 

